Stump-burner.



J. J. MANEY.

STUMP BURNER.

APPLICATION FILED JULY 17, 1912.

1,053,102. Patented Feb. 11, 1913 2 SHEBTS-SHBET l.

J. J. MANEY.

STUMP BURNER. APPLICATION FILED JULY 17, 1912.

1,053, 102. Patented Feb. 1l, 1913.

2 SHEETS-SHEET 2.

JOHN, J. MANEY, F SEATTLE, WASHINGTON.

STUMP-BURNER.

Specification of Letters Patent. appncaaonaiea my i7, una.

i retreated rei). 11,1913. senai No. 710,051. i

To all ywhomjiz may concern: Be it known that l, JOHN J. Milner, citizen of the United States, residing at Seattle, in the county ot' King and State ot `Washirrgton, have invented a certain new cultivation, and the object of my improve `ment is to provide' a lstump-burner which shall be readily taken apart and reassembled, simple in constructiomeihcient in operation and adapted by the non-heat-conducting 4character of the material used' in its construction to lcontinewithin it heat which may be generated by combustion of an invclosed stump whereby surrounding objects may be protected from fire, and a further object/of my improvement is to provide a stump-burner that shall be adapted to inclose and burn a stump that is disposed on a side-hill or on uneven ground. I attain these objects by devices illustrated in the accompanying drawings, in which- Figure 1 is a view in side elevation of a structure embodying my invention, with a fragment thereof/removed more clearly to S0 show by a view in vertical-section some of y its parts, Figs. 2, 3 and fl are views in per- .spective showing details of my invention, Fig. 5 is a view in vertical-section of my invention while F ig. 6 is a view in horizontal-section of the same on broken line -m of Fig. 5, but in which a stump and other parts are indicated by dotted lines.

Briefly my invention comprises a cylindrical inclosure provided with a dome 40 shapedncover or roof from the topmost portion of which projects a chimney or smoke-pipe provided with a damper adapted to regulate the escape of products of combustion, in a well known manner, such smoke-pipe comprising separable sections to .adapt it to bc increased or decreased in height to suit different ccnditions of employment. The cylindrical portion of the structure may be formed by bolting together adjacent-flanged vertical edges ot" a plurality of segmental panels of suitable material upon the top iianged edges of which is disposed and bolted' the ianged lower edge of the dome shaped roof. These segmental panels; smoke-pipe and the roof are preferably of a composition of concrete 'non-heat-conducting composite and shredded asbestos or like non-heatconducting refractory material molded into` suitable form. The outer surface of each or the vertical flanges ot the segmental pieces where itsengages with an adjacent ange 1s rounded tol adapt each segmental panel for employment in inclosures of different diameters, which inclosures may be made to diler in their diameter by varying the number of segmental panels of which they are constructed. Thus Witlra given maximum number of panels, constituting a set of panels, with which to constrtct a cylindrical inclosure of maximum diameter there would be provided a roof of required diameter'l for such largest inclosure and a separate roof would be provided'for each of desired smaller sizes of inclosures thatmight be produced by smaller numbers of My invention also comprises means whereby a stump to be burned may be inclosed when such stump is disposed on a hill-side `or on uneven ground and suoli means consists in providing auxiliary ianged segments which are adapted to iit'within'tlie space between the vertical anges of the panels whereby the panels disposed on the down hill side of a stump may be extended to compensate for the unevenness of the.

ground.

My invention also embodies means for admitting air into the inclosure at a point near` the base ofthe stump, and further it rovides opening mea-ns through which indling wood or other fuel may be inserted, such opening means comprising a hinged door disposed in one or more of the panels of' an inclosure. j

Referring to Fig. 1 of the drawings wherein is shown a structure disposed on the side of a hill, S is a dome shaped roof secured'by bolts 18 to the top of a cylindrical inclosure made of the segmental panels 9 which are 'bolted together by bolts 19 Which' extendI through the adjacent fianges 10 of said panels 9, as shown more clearly in Fig. 6, there, being interposed between adjacent anges 10 a packing strip 11 ofthe form shown in perspective in Fig. 4, said packing strip 11 being provided with holes 20 which are disposed to correspond with holes -21 in y the vertical langesvl() of the panels 9. The packing strips 11, panels 9 'and the dome shaped roof 8 are each made ofrefractory material su-ch as a mixture of concrete shredded as- .bestes and clay, or the like, molded into additional section being indicated by the.

fragmental section and such smoke-pipe 14 preferably may be made of non-heat-conducting composite material. As shown 'in Fig. 1 auxiliary segments 13 serve to extend downwardly fromthe lower end port-ions of those panels 9 which are disposed on the lower side of the hill whereby there may be close contact between the lower ground and the edge'of the inclosure.

Fig. 2 illustrates the manner in which an auxiliary segment 13 may' be disposed adj ustably to fit within the space between the 'flanges 10 of apanel 9, the holes 26 in the flanges of the auxiliary segment 13 being adapted by their distance apart to co-rre spond with the holes 21 in the ianges of the panel 9 whereby the auxiliary segment 13 'may be secured to extend from the panel 9 for diiferent desired distances. Between the adj aeent'flanges 23 of the auxiliary segments 13 are disposed packing strips 12 of the form shown in perspective view in Fig. 3. The auxiliary segments 13 and the Apacking strips 12 may be of different lengths as required or they may all be of the same length and then be extended for a greater or less distance, as required, to project from the lower ends of the panels 13.V In one of the panels 9 isA a door 24, which is adapted by the hinges 25 to open and swing outwardly and downwardly (and in which vis a window 27 of mica) whereby, as required, kindling 1 wood or other fuel may be inserted and whereby the progress of combustion may be observed. While I have shown only oneV of the panels 13 provided with a door 24 there' may be a door in each= of any desired number of said panels 13. A pipe 17 for coni ducting air for purposes of combustion, as indicated in Fig. 1, leadsinto the inclosure, being disposed in the ground beneath the edges of the structure as indicated by broken lines, such pipe 1,7 thus disposed may deliver air close to the roots of a stump, indicated by broken lines in Fig. 1. There may be a plurality of such pipes 17 as may best suit a given condition and such pipes 17 may Veach be provided with-means of draft regulation in a well known manner not shown. y

Referring to Fig. 6 it will be observed how the adjacent surfaces of the flanges 10 are rounded whereby vwhen an inclosure is to be changedrili diameter byrelnoving or adding a panel 9 such rounded surfaces of the anges 10 may serve to adj ust-themselves to form a close contact with the packing strips 11 in an obvious manner.

Fig. 5 illustrates a struct-ure embodying my invention disposed to inclose a stump located on level land whereby auxiliary segments 13 are not required, but in all other features the structure of Fig. 5 is the same as the structure of Fig. 1.

The dome form of the roof 8 as shown in Figs. l and 5 lis a feature of greatimportance since in the operation of burning a stump its concave surface so deflects air and products of combustion as to cause a much more thorough mixture of air and gases, than does a cone shaped roof or a roof of other form whereby the temperature within 4the inclosure is enormously increased thus to accelerate combustion.

` l\flanifestly a structure embodying iny invention, by a proper supervision of air snpply through pipes 17 and suitable adjustment of the damper 16 in the smoke-pipe 14, may operate to reduce stumps to charcoal of commercial value instead of reducing them wholly to ashes.

In the operation of burning a stump wit h.

in a structure embodying my invention it is well to remove the earth between .adjacent large roots' of the stump as illustrated in Fig. and dispose a pipe 17 to deliver air at a point between adjacent roots where such earth has been removed as many, pipes 17 being employed as may be desired whereupon shavings and kindling wood or other quick burning fuel may be disposed around the base of the stump and then ignited whereby the entire stump may catch fire to burn. In some cases the burning of a stump `may b e accelerated by splitting itopen in two or three placeslthus to expose larger areas to the action of flames.

Obviously minor inodilications of my invention may be made without departing from the spirit thereof.

What I claim is:

1. In a stump burner of the class described, a plurality of segmental panels adapted to be disposed to form the vertical walls of an inclosure around a stump, each of said panels being provided'witli flanges whose outer sides are rounded and whlch project outwardly from the vertical edges of said panel, said panels being made of refractory nonheat-conducting material,

a packing strip of refractory nonl'heat-con,

ducting material adapted to be disposed between the rounded surfaces of adjacent flanges of said panels, means for fastening together and uniting saidv adjacent flanges and one ofsaid packing strips,.a dome shaped roof made of refractory non-heatj conducting material and adapted to .be-securely disposed upon and to cover an inclosure made of said panels, said "dome,

nasales shaped roof being provided with regulatiye means for permit-tingthe escape oit air and products ot coml' ustion7 conduit means adapted to be disposed below the lower end of said panel and adapted for conducting air from without into the bottom portion ot' the space within an inclosure einbodying said panels, and opening means associated with said panels whereby fuel may be introduced into such an inclosure.

2. ln a stump burner of the class des zribed, the combination with a plurality of wmental panels forming the vertical walls ot an inclosure each of which panels is composed wholly ot' refractory non-heatconducting' material and provided with flanges whose outer surfaces are'rounded, whereby, when the size of said inclosure is varied, the joint between adjacent 'llanges may be tight7 of means for fastening together the adjacent lanffes of said panels, a dome shaped roof made wholly ot' like refractory 1ien-heat-conductii1g material securely disposed upon the top of said inclosure, said root being provided with regulative means for permitting the escape ot air and products ot combustion, regulative means for introducingj air into said inclosure for purposes of combustion, and an opening means associated with said inclosure whereby t'uel may be introduced thereinto.

ln a. stump burner ot the class described, the combination with a plurality ot' segmental panels made wholly of refractory non-heat-conducting material and adapted to form the vertical walls of an inclosure` of auxiliary panels made ot' like material and adapted each remoif'ably and adjustably to be associated with any one ,of said segmental panels whereby said auxiliary panels may serve, as an extension to said segmenta panels to produce a desired dimension to compensate Yfor any unevenness of the ground upon which an inclosure embodying` said panelsjmay be located.

et. ln a stump burner ot' the class described, a plurality of segmental panels each ot wnich is composed Wholly of refractory non-heat-conducting material and provided with langes whose outer surfaces are rounded, whereby, when the size of the burner casingis varied, the joint between adjacent flanges may be tight, in combination with a dome shaped root which is wholly composed of like refractory non-heat-condueting material and which is adapted to be disposed upon and cover a burner casing embodying said panels.

ln witness whereof, I' hereunto subscribe my name this 6th day of July A. D., 1912.

' JOHN J. MANEY.

W'iti'iesses Renner D. HAMLIN, Fin-mii lVaaany. 

